Portrait of Cillian O'Sullivan

Cillian O'Sullivan

Born: Unknown birthdate.
Cillian O'Sullivan is ?
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Acting Roles
Crew Roles

Movies (Acting Roles)

Sorted by Release Date
Poster of The Lost Princess
The Lost Princess
Cillian O'Sullivan was
? in The Lost Princess
as 'Alec Touati'.
Tue, Aug 15 2023
Poster of Misty Button
Misty Button
Cillian O'Sullivan was
? in Misty Button
as 'James'.
Sun, Mar 17 2019
Poster of Maze
Maze
Cillian O'Sullivan was
? in Maze
as 'Bobby'.
Fri, Sep 22 2017
Poster of Halo: Nightfall
Halo: Nightfall
Cillian O'Sullivan was
? in Halo: Nightfall
as 'Christian Ramsey (uncredited)'.
Wed, Feb 05 2014
Poster of Uncle Bill's Barrel
Uncle Bill's Barrel
Cillian O'Sullivan was
? in Uncle Bill's Barrel
as 'Tom Lynch'.
Sat, Oct 18 2008

TV Shows (Acting Roles)

Sorted by Release Date
Ages in TV shows are based off the first air date and may not be accurate. View individual episode details for accurate ages
Poster of The Boy That Never Was
The Boy That Never Was
Cillian O'Sullivan was
? in The Boy That Never Was
as 'Dave Carrick'.
First Air Date
Sun, Sep 01 2024
Poster of Then You Run
Then You Run
Cillian O'Sullivan was
? in Then You Run
as 'Orin'.
First Air Date
Fri, Jul 07 2023
Poster of In From the Cold
In From the Cold
Cillian O'Sullivan was
? in In From the Cold
as 'Chauncey'.
First Air Date
Fri, Jan 28 2022
Poster of Bull
Bull
Cillian O'Sullivan was
? in Bull
as 'Nathan Alexander'.
First Air Date
Tue, Sep 20 2016
Poster of Chicago P.D.
Chicago P.D.
Cillian O'Sullivan was
? in Chicago P.D.
as 'Shane Sullivan'.
First Air Date
Wed, Jan 08 2014
Poster of The Blacklist
The Blacklist
Cillian O'Sullivan was
? in The Blacklist
as 'Skip Sutherland'.
First Air Date
Mon, Sep 23 2013
Poster of Vikings
Vikings
Cillian O'Sullivan was
? in Vikings
as 'Eirik'.
First Air Date
Sun, Mar 03 2013